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<h1 id="firstHeading" class="firstHeading">Symbol Index (removed)</h1>
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                    <div id="contentSub"><span class="subpages">&lt; <a href="../../cpp.html" title="cpp">cpp</a>‎ | <a href="../symbol_index.html" title="cpp/symbol index">symbol index</a></span></div>
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                    <div id="mw-content-text" lang="en" dir="ltr" class="mw-content-ltr"><div class="t-navbar" style=""><div class="t-navbar-sep"> </div><div class="t-navbar-head"><a href="../../cpp.html" title="cpp"> C++</a></div><div class="t-navbar-sep"> </div><div class="t-navbar-head"><a href="../symbol_index.html" title="cpp/symbol index"> Symbol Index</a><div class="t-navbar-menu"><div><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv-h1"><td colspan="5"> <a href="../symbol_index.html" title="cpp/symbol index"><tt>std</tt></a> </td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="chrono.html" title="cpp/symbol index/chrono"><span class="t-lines"><span>std::chrono</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="execution.html" title="cpp/symbol index/execution"><span class="t-lines"><span>std::execution</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="filesystem.html" title="cpp/symbol index/filesystem"><span class="t-lines"><span>std::filesystem</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="literals.html" title="cpp/symbol index/literals"><span class="t-lines"><span>std::literals</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="numbers.html" title="cpp/symbol index/numbers"><span class="t-lines"><span>std::numbers</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="placeholders.html" title="cpp/symbol index/placeholders"><span class="t-lines"><span>std::placeholders</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="pmr.html" title="cpp/symbol index/pmr"><span class="t-lines"><span>std::pmr</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ranges.html" title="cpp/symbol index/ranges"><span class="t-lines"><span>std::ranges</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="regex_constants.html" title="cpp/symbol index/regex constants"><span class="t-lines"><span>std::regex_constants</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="rel_ops.html" title="cpp/symbol index/rel ops"><span class="t-lines"><span>std::rel_ops</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-deprecated-cxx20">(deprecated in C++20)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="this_thread.html" title="cpp/symbol index/this thread"><span class="t-lines"><span>std::this_thread</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> <a href="macro.html" title="cpp/symbol index/macro"> Macros</a> </td></tr>
<tr class="t-nv-h1"><td colspan="5"> <strong class="selflink"> Removed symbols</strong> </td></tr>
</table></div><div></div></div></div></div><div class="t-navbar-sep"> </div></div>
<p>This page tries to list all the symbols that were available from the <i>Standard Library</i> in the namespace <code>std::</code> or in the scope of a scoped enumeration or a class, but removed in following standards. The symbols are written as follows:
</p>
<ul><li>Function names with <code>()</code>.
</li><li>Templates with <code>&lt;&gt;</code>.
</li></ul>
<p>Member names that are still available in other types are not listed here.
</p>
<h3><span class="mw-headline" id="Removed_in_C.2B.2B14">Removed in C++14</span></h3>
<p><a href="../io/c/gets.html" title="cpp/io/c/gets"><tt>gets()</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx14">(removed in C++14)</span> <br>
</p>
<h3><span class="mw-headline" id="Removed_in_C.2B.2B17">Removed in C++17</span></h3>
<p><a href="../memory/auto_ptr.html" title="cpp/memory/auto ptr"><tt>auto_ptr&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/binary_function.html" title="cpp/utility/functional/binary function"><tt>binary_function&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/bind12.html" title="cpp/utility/functional/bind12"><tt>bind1st&lt;&gt;()</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/bind12.html" title="cpp/utility/functional/bind12"><tt>bind2nd&lt;&gt;()</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/binder12.html" title="cpp/utility/functional/binder12"><tt>binder1st&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/binder12.html" title="cpp/utility/functional/binder12"><tt>binder2nd&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/mem_fun_ref_t.html" title="cpp/utility/functional/mem fun ref t"><tt>const_mem_fun_ref_t&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/mem_fun_t.html" title="cpp/utility/functional/mem fun t"><tt>const_mem_fun_t&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/mem_fun_ref_t.html" title="cpp/utility/functional/mem fun ref t"><tt>const_mem_fun1_ref_t&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/mem_fun_t.html" title="cpp/utility/functional/mem fun t"><tt>const_mem_fun1_t&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../error/exception/get_unexpected.html" title="cpp/error/exception/get unexpected" class="mw-redirect"><tt>get_unexpected()</tt></a> <span class="t-mark-rev t-since-cxx11">(since C++11)</span><span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/mem_fun.html" title="cpp/utility/functional/mem fun"><tt>mem_fun&lt;&gt;()</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/mem_fun_ref.html" title="cpp/utility/functional/mem fun ref"><tt>mem_fun_ref&lt;&gt;()</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/mem_fun_ref_t.html" title="cpp/utility/functional/mem fun ref t"><tt>mem_fun_ref_t&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/mem_fun_t.html" title="cpp/utility/functional/mem fun t"><tt>mem_fun_t&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/mem_fun_ref_t.html" title="cpp/utility/functional/mem fun ref t"><tt>mem_fun1_ref_t&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/mem_fun_t.html" title="cpp/utility/functional/mem fun t"><tt>mem_fun1_t&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/pointer_to_binary_function.html" title="cpp/utility/functional/pointer to binary function"><tt>pointer_to_binary_function&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/pointer_to_unary_function.html" title="cpp/utility/functional/pointer to unary function"><tt>pointer_to_unary_function&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/ptr_fun.html" title="cpp/utility/functional/ptr fun"><tt>ptr_fun&lt;&gt;()</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../algorithm/random_shuffle.html" title="cpp/algorithm/random shuffle"><tt>random_shuffle&lt;&gt;()</tt></a> <span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../error/exception/set_unexpected.html" title="cpp/error/exception/set unexpected" class="mw-redirect"><tt>set_unexpected()</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../utility/functional/unary_function.html" title="cpp/utility/functional/unary function"><tt>unary_function&lt;&gt;</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../error/exception/unexpected_handler.html" title="cpp/error/exception/unexpected handler" class="mw-redirect"><tt>unexpected_handler</tt></a> <span class="t-mark-rev t-deprecated-cxx11">(deprecated in C++11)</span><span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
</p>
<h4><span class="mw-headline" id="Member_names">Member names</span></h4>
<p><a href="../io/ios_base.html" title="cpp/io/ios base"><tt>io_state</tt></a> <span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../io/ios_base.html" title="cpp/io/ios base"><tt>open_mode</tt></a> <span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../io/ios_base.html" title="cpp/io/ios base"><tt>seek_dir</tt></a> <span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
<a href="../io/basic_streambuf/sbumpc.html" title="cpp/io/basic streambuf/sbumpc"><tt>stossc()</tt></a> <span class="t-mark-rev t-until-cxx17">(removed in C++17)</span> <br>
</p>
<h3><span class="mw-headline" id="Removed_in_C.2B.2B20">Removed in C++20</span></h3>
<p><a href="../utility/functional/binary_negate.html" title="cpp/utility/functional/binary negate"><tt>binary_negate&lt;&gt;</tt></a> <span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
<a href="../memory/get_temporary_buffer.html" title="cpp/memory/get temporary buffer"><tt>get_temporary_buffer&lt;&gt;()</tt></a> <span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
<a href="../types/is_literal_type.html" title="cpp/types/is literal type"><tt>is_literal_type&lt;&gt;</tt></a> <span class="t-mark-rev t-since-cxx11">(since C++11)</span><span class="t-mark-rev t-deprecated-cxx17">(deprecated in C++17)</span><span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
<a href="../types/is_literal_type.html" title="cpp/types/is literal type"><tt>is_literal_type_v&lt;&gt;</tt></a> <span class="t-mark-rev t-since-cxx17">(since C++17)</span><span class="t-mark-rev t-deprecated-cxx17">(deprecated in C++17)</span><span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
<a href="../utility/functional/not1.html" title="cpp/utility/functional/not1"><tt>not1&lt;&gt;()</tt></a> <span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
<a href="../utility/functional/not2.html" title="cpp/utility/functional/not2"><tt>not2&lt;&gt;()</tt></a> <span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
<a href="../memory/raw_storage_iterator.html" title="cpp/memory/raw storage iterator"><tt>raw_storage_iterator&lt;&gt;</tt></a> <span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
<a href="../types/result_of.html" title="cpp/types/result of"><tt>result_of&lt;&gt;</tt></a> <span class="t-mark-rev t-since-cxx11">(since C++11)</span><span class="t-mark-rev t-deprecated-cxx17">(deprecated in C++17)</span><span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
<a href="../types/result_of.html" title="cpp/types/result of"><tt>result_of_t&lt;&gt;</tt></a> <span class="t-mark-rev t-since-cxx14">(since C++14)</span><span class="t-mark-rev t-deprecated-cxx17">(deprecated in C++17)</span><span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
<a href="../memory/return_temporary_buffer.html" title="cpp/memory/return temporary buffer"><tt>return_temporary_buffer&lt;&gt;()</tt></a> <span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
<a href="../utility/functional/unary_negate.html" title="cpp/utility/functional/unary negate"><tt>unary_negate&lt;&gt;</tt></a> <span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
<a href="../error/exception/uncaught_exception.html" title="cpp/error/exception/uncaught exception" class="mw-redirect"><tt>uncaught_exception()</tt></a> <span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
</p>
<h4><span class="mw-headline" id="Member_names_2">Member names</span></h4>
<p><a href="../utility/functional.html" title="cpp/utility/functional"><tt>argument_type</tt></a> <span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
<a href="../utility/functional.html" title="cpp/utility/functional"><tt>first_argument_type</tt></a> <span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
<a href="../utility/functional.html" title="cpp/utility/functional"><tt>second_argument_type</tt></a> <span class="t-mark-rev t-until-cxx20">(removed in C++20)</span> <br>
</p>
<h3><span class="mw-headline" id="Removed_in_C.2B.2B23">Removed in C++23</span></h3>
<p><a href="../memory/gc/declare_no_pointers.html" title="cpp/memory/gc/declare no pointers"><tt>declare_no_pointers()</tt></a> <span class="t-mark-rev t-since-cxx11">(since C++11)</span><span class="t-mark-rev t-until-cxx23">(removed in C++23)</span> <br>
<a href="../memory/gc/declare_reachable.html" title="cpp/memory/gc/declare reachable"><tt>declare_reachable()</tt></a> <span class="t-mark-rev t-since-cxx11">(since C++11)</span><span class="t-mark-rev t-until-cxx23">(removed in C++23)</span> <br>
<a href="../memory/gc/get_pointer_safety.html" title="cpp/memory/gc/get pointer safety"><tt>get_pointer_safety()</tt></a> <span class="t-mark-rev t-since-cxx11">(since C++11)</span><span class="t-mark-rev t-until-cxx23">(removed in C++23)</span> <br>
<a href="../memory/gc/pointer_safety.html" title="cpp/memory/gc/pointer safety"><tt>pointer_safety</tt></a> <span class="t-mark-rev t-since-cxx11">(since C++11)</span><span class="t-mark-rev t-until-cxx23">(removed in C++23)</span> <br>
<a href="../memory/gc/undeclare_no_pointers.html" title="cpp/memory/gc/undeclare no pointers"><tt>undeclare_no_pointers()</tt></a> <span class="t-mark-rev t-since-cxx11">(since C++11)</span><span class="t-mark-rev t-until-cxx23">(removed in C++23)</span> <br>
<a href="../memory/gc/undeclare_reachable.html" title="cpp/memory/gc/undeclare reachable"><tt>undeclare_reachable&lt;&gt;()</tt></a> <span class="t-mark-rev t-since-cxx11">(since C++11)</span><span class="t-mark-rev t-until-cxx23">(removed in C++23)</span> <br>
</p>
<h4><span class="mw-headline" id="Member_names_3">Member names</span></h4>
<p><a href="../memory/gc/pointer_safety.html" title="cpp/memory/gc/pointer safety"><tt>preferred</tt></a> <span class="t-mark-rev t-since-cxx11">(since C++11)</span><span class="t-mark-rev t-until-cxx23">(removed in C++23)</span> <br>
<a href="../memory/gc/pointer_safety.html" title="cpp/memory/gc/pointer safety"><tt>strict</tt></a> <span class="t-mark-rev t-since-cxx11">(since C++11)</span><span class="t-mark-rev t-until-cxx23">(removed in C++23)</span> <br>
</p>
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